8–12 Jun 2026
Athens, Greece
Europe/Athens timezone

The challenges of using Baryon Acoustic Oscillations distances for cosmology

Not scheduled
20m
Athens, Greece

Athens, Greece

Multimedia Amphitheatre of the Central Library of National Technical University, Zografou Campus Athens 15780, Greece e_phys@mail.ntua.gr

Speaker

Stefano Anselmi (INFN, Sezione di Padova)

Description

One of the landmarks guiding our understanding of physical cosmology is the large-scale structure, defined as the large scale distributions of galaxies, as observed by galaxy surveys. In this context, the so-called Baryon Acoustic Oscillations, are considered one of the most powerful cosmological probes. They are generally deemed to provide distance measures independent of a specific cosmological model. At the same time the obtained distances are considered agnostic with respect to other cosmological observations. However current measurements are obtained relying on several fitting and model prescriptions.
Does this comply with the requirement of model and parameter independent cosmological distances useful, for instance, to select cosmological models, detect Dark Energy and characterize cosmological tensions?
In this talk I will review the subject, answer compelling questions and explore new promising research directions.

Author

Stefano Anselmi (INFN, Sezione di Padova)

Presentation materials

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